Question

(10)2 + (20)2 using identities​

Answer 1

Using identities, a² + b ²

Now, we consider 10 ² as (a²) & 20 as ( b²)

Here,

(a² + b²) = a² + b² + 2ab

( 10² + 20² ) = 10 ² + 20 ² + 2 + 10 x 20

= 100 + 400 + 2+ 200

= 500 + 202

= 702

( 10² + 20²) = 702

Hope it help to u plz mark as brainlist and thank my this answer.